After the wallpaper company withdrew its sponsorship, Rondeau continued with Ford-powered GTP cars bearing his own name in 1978, scoring a coup by hiring Henri Pescarolo for his team in 1979.Rondeau finished second in the 1984 24 Hours of Le Mans as part of the American Preston Henn's race team, running with John Paul Jr. in a Porsche 956B.After picking up sponsorship from the French wallpaper company Inaltera, Rondeau built a Group Six car eligible to compete in the GT prototype class.It achieved GTP class wins against Peugeot, Aston-Martin, and Ferrari powered cars for two consecutive years, in 1977 placing fourth overall and 27 laps behind the race winner.In 1982 the Rondeau team made a strong bid for the manufacturers' title in the World Endurance Championship with a win at the Monza 1000 km event and two other podium finishes that yielded a close second-place ranking behind Porsche in season points.